Ampere turns

ABSTRACT

A METHOD OF MAKING A LAMINATED ROLL FOR USE IN MAGNETIC CALENDERS WHEREIN THE ROLL INCLUDES A PLURALITY OF ANNULAR LAMINATIONS INSTALLED ON A CONCENTRIC CORE UNDER PARTICULAR LOADING CONDITIONS WHICH CONFER A STIFFNESS THAT PREVENTS LAMINATION SEPARATION IN SERVICE. THE METHOD INCLUDES THE STEPS OF ASSEMBLING THE LAMINATIONS IN ABUTMENT WITH ONE ANOTHER CONCENTRICALLY ON A METALLIC CORE HAVING A STOP ON ONE END AND APPLYING AN AXIALLY DIRECTED COMPRESSIVE FORCE TO THE LAMINATIONS CONCURRENTLY WITH A SUBSTANTIALLY EQUAL BUT OPPOSED AXIALLY DIRECTED TENSILE FORCE TO THE CORE. THE LOADING FORCE APPLIED IS EQUAL TO ABOUT TWICE THE LEVEL OF LOADING FORCE APPLIED IS EQUAL TO PERMANENTLY PRELOAD THE LAMINATED ROLL. THE LAMINATIONS AFTER BEING PLACED THE LAMINATED ROLL. THE LAMINATIONS PLACE UNDER THE COMPRESSIVE AND TENSILE FORCES APPLIED DURING ASSEMBLY OF THE ROLL.

DEFENSIVE PUBMCATION UNITED STATES PATENT OFFICE Published at therequest of the applicant or owner in accordance with the Notice of Dec.16, 1969, 869 O.G. 687. The abstracts of Defensive Publicationapplications are identified by distinctly numbered series and arearranged chronologically. The heading of each abstract indicates thenumber of pages of specification, including claims and sheets ofdrawings contained in the application as originally filed. The files ofthese applications are available to the public for inspection andreproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to themerits of alleged invention. The Patent Office makes no assertion as tothe novelty of the disclosed subject matter.

PUBLISHED NOVEMBER 23, 1971 sesame, 27 3o 22' \llllllllllllllllllllll Amethod of making a laminated roll for use in magnetic calenders whereinthe roll includes a plurality of annular laminations installed on aconcentric core under particular loading conditions which confer astillness that prevents lamination separation in service. The methodincludes the steps of assembling the laminations in abutment with oneanother concentrically on a metallic core having a stop on one end andapplying an axially directed compressive force to the laminationsconcurrently with a substantially equal but opposed axially directedtensile force to the core. The loading force applied is equal to abouttwice the level of loading at which it is desired to permanently preloadthe laminated roll. The laminations after being placed on the core arepermanently locked in place under the compressive and tensile forcesapplied during assembly of the roll,

TifiZAMS PROCESS OF MAKING LMMINATED ROLL Filed Jan.

NW. 23, 1971 D. w. EDWARDS PROCESS OF MAKING LAMINATED ROLL 2Sheets-Sheet 2 Filed Jan. 5, 1971 Em A UEQS 22 m f u w 0 w o w 8 0 ME :4Wm 0 Wm... L O m i m w @w m 2 E v ,4 w A w 1 m 0 nw/ M m k 0,07 w l, M/NWAO/ N 0 R U /w m D n w A m M m 0 w 0 0 0 0 0 0 0 6 5 a w w AMPERETURNS O 0 0 0 O m w w 2 3m JEQS E2 ROLL SURFACE SPEED 'YPM.

